Sime DUETTO 20 OFi, Руководство пользователя

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83
BOILER IGNITION
Press the main switch for lighting the
boiler. The green light turns on to indi-
cate that the appliance is powered (fig.
19). In the
“DUETTO 20-30-40-PR 40
OFi/30-40 BFi” version choose the
position Summer/Winter on the
switch (fig. 20):
– The boiler oper at es in tr eat ed
phase wit h t he switch in t he
position
(SUMMER)
– The boiler operates both in treated
phase as well as for heating with
the switch in the position
(WIN-
TER). The room stat or the chrono-
stat will stop the operation of the
boiler.
TEMPERATURE ADJUSTMENT
The heating t emperature can be
adjusted by turning the knob of the
thermostat which has a range of
between 45 and 85°C.
The t emper atur e se tting can be
checked on the thermometer.
To ensure optimal boiler efficiency at
all times, we recommend not to drop
below a minimum working tempera-
ture of 60°C (fig. 21).
SAFETY STAT
The safety stat is of the manually
resetting type and opens, causing the
main burner to turn off immediately,
whenever the temperature of 110°C is
exceeded in the boiler. To restore boil-
er operation, unscrew the black cap
and reset the button (fig. 21).
Should the appliance “lock out” again,
USER INSTRUCTIONS
WARNINGS
– In case of fault and/or incorrect operation, deactivate it without making any repairs or taking any direct action. If fuel or
combustion is smelt, air the room and close the fuel interception device. Contact the authorised technical staff.
– The installation of the boiler and any servicing or maintenance job must be carried out by qualified personnel.
– It is absolutely prohibited to block the intake grilles and the aeration opening of the room where the equipment is
installed. The intake grilles are indispensable for a correct combustion.
IGNITION AND OPERATION
Fig. 19
Fig. 20
60
°
C
Fig. 21
GREEN LIGHT ON